body {
    margin: 0px auto;
    margin-top: 60px;
    background-color: #fff;
}
.title{
    width: 80%;
    height: 55px;
    text-align:center;
}
a:link {
    text-decoration: none;
}
a:visited {
    text-decoration: none;
}
a:hover {
    text-decoration: none;
}
a:active {
    text-decoration: none;
}
h1{
    display: inline;
    font-family:微软雅黑;
    color: #3c5787;
    clear: both;

}
section{
    float: left;
}
#comment_list{
    text-align: center;
}
#comment_list tr td{
    width: 125px;
    height: 50px;
}
#popView{

    height: 500px;
    width: 22%;

    position:absolute;
    z-index:2;
    left:-16%;
}
#popView1{

    height: 100%;
    width: 80%;

    position:absolute;
    z-index:2;
    left:5%;
}
.button {
    display: inline-block;
    position: relative;

}
.gray {
    color: #3e5706;
    background: #eee;

}
#nav_button{
    width: 35px;
    height: 70px;
    border-radius:5px;
    position: absolute;
    left: 71%;
    top:45%;
    text-align: center;
    z-index: 99;
}
#nav_button:hover{
    display:inline-block;
}

.wrap1{border:1px solid white;width:20%;height:20px;margin-left:3px;}
.wrap1:hover div{display:block;margin-right:10px;}
.wrap1 div{display:none;float:left;}